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core_mqtt_config_defaults.h 7.26 KB
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/*
* coreMQTT v2.1.0
* Copyright (C) 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* @file core_mqtt_config_defaults.h
* @brief This represents the default values for the configuration macros
* for the MQTT library.
*
* @note This file SHOULD NOT be modified. If custom values are needed for
* any configuration macro, a core_mqtt_config.h file should be provided to
* the MQTT library to override the default values defined in this file.
* To use the custom config file, the MQTT_DO_NOT_USE_CUSTOM_CONFIG preprocessor
* macro SHOULD NOT be set.
*/
#ifndef CORE_MQTT_CONFIG_DEFAULTS_H_
#define CORE_MQTT_CONFIG_DEFAULTS_H_
/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */
/* MQTT_DO_NOT_USE_CUSTOM_CONFIG allows building the MQTT library
* without a custom config. If a custom config is provided, the
* MQTT_DO_NOT_USE_CUSTOM_CONFIG macro should not be defined. */
#ifndef MQTT_DO_NOT_USE_CUSTOM_CONFIG
/* Include custom config file before other headers. */
#include "core_mqtt_config.h"
#endif
/* The macro definition for MQTT_DO_NOT_USE_CUSTOM_CONFIG is for Doxygen
* documentation only. */
/**
* @brief Define this macro to build the MQTT library without the custom config
* file core_mqtt_config.h.
*
* Without the custom config, the MQTT library builds with
* default values of config macros defined in core_mqtt_config_defaults.h file.
*
* If a custom config is provided, then MQTT_DO_NOT_USE_CUSTOM_CONFIG should not
* be defined.
*/
#ifdef DOXYGEN
#define MQTT_DO_NOT_USE_CUSTOM_CONFIG
#endif
/**
* @ingroup mqtt_constants
* @brief Maximum number of vectors in subscribe and unsubscribe packet.
*/
#ifndef MQTT_SUB_UNSUB_MAX_VECTORS
#define MQTT_SUB_UNSUB_MAX_VECTORS ( 4U )
#endif
/**
* @brief The number of retries for receiving CONNACK.
*
* The MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT will be used only when the
* timeoutMs parameter of #MQTT_Connect is passed as 0 . The transport
* receive for CONNACK will be retried MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT
* times before timing out. A value of 0 for this config will cause the
* transport receive for CONNACK to be invoked only once.
*
* <b>Possible values:</b> Any positive 16 bit integer. <br>
* <b>Default value:</b> `5`
*/
#ifndef MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT
/* Default value for the CONNACK receive retries. */
#define MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT ( 5U )
#endif
/**
* @brief Maximum number of milliseconds to wait for a ping response to a ping
* request as part of the keep-alive mechanism.
*
* If a ping response is not received before this timeout, then
* #MQTT_ProcessLoop will return #MQTTKeepAliveTimeout.
*
* @note If this value is more than half of the keep alive interval, and the
* server does not receive the previous ping request, then it is likely that the
* server will disconnect the client before #MQTTKeepAliveTimeout can be returned.
*
* @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
* is supplied to the library, then the keep-alive mechanism is not supported by the
* #MQTT_ProcessLoop API function. In that case, the value of #MQTT_PINGRESP_TIMEOUT_MS
* is irrelevant to the behavior of the library.
*
* <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
* <b>Default value:</b> `5000`
*/
#ifndef MQTT_PINGRESP_TIMEOUT_MS
/* Wait 5 seconds by default for a ping response. */
#define MQTT_PINGRESP_TIMEOUT_MS ( 5000U )
#endif
/**
* @brief Maximum number of milliseconds of TX inactivity to wait
* before initiating a PINGREQ
*
* @note If this value is less than the keep alive interval than
* it will be used instead.
*
* <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
* <b>Default value:</b> '30000'
*/
#ifndef PACKET_TX_TIMEOUT_MS
#define PACKET_TX_TIMEOUT_MS ( 30000U )
#endif
/**
* @brief Maximum number of milliseconds of RX inactivity to wait
* before initiating a PINGREQ
*
* <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
* <b>Default value:</b> '30000'
*
*/
#ifndef PACKET_RX_TIMEOUT_MS
#define PACKET_RX_TIMEOUT_MS ( 30000U )
#endif
/**
* @brief The maximum duration between non-empty network reads while
* receiving an MQTT packet via the #MQTT_ProcessLoop or #MQTT_ReceiveLoop
* API functions.
*
* When an incoming MQTT packet is detected, the transport receive function
* may be called multiple times until all of the expected number of bytes of the
* packet are received. This timeout represents the maximum polling duration that
* is allowed without any data reception from the network for the incoming packet.
*
* If the timeout expires, the #MQTT_ProcessLoop and #MQTT_ReceiveLoop functions
* return #MQTTRecvFailed.
*
* @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
* is supplied to the library, then #MQTT_RECV_POLLING_TIMEOUT_MS MUST be set to 0.
*
* <b>Possible values:</b> Any positive 32 bit integer. Recommended to use a
* small timeout value. <br>
* <b>Default value:</b> `10`
*
*/
#ifndef MQTT_RECV_POLLING_TIMEOUT_MS
#define MQTT_RECV_POLLING_TIMEOUT_MS ( 10U )
#endif
/**
* @brief The maximum duration allowed to send an MQTT packet over the transport
* interface.
*
* When sending an MQTT packet, the transport send or writev functions may be
* called multiple times until all of the required number of bytes are sent.
* This timeout represents the maximum duration that is allowed to send the MQTT
* packet while calling the transport send or writev functions.
*
* If the timeout expires, #MQTTSendFailed will be returned by the public API
* functions.
*
* @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
* is supplied to the library, then #MQTT_SEND_TIMEOUT_MS MUST be set to 0.
*
* <b>Possible values:</b> Any positive 32 bit integer. <br>
* <b>Default value:</b> `20000`
*
*/
#ifndef MQTT_SEND_TIMEOUT_MS
#define MQTT_SEND_TIMEOUT_MS ( 20000U )
#endif
#ifdef MQTT_SEND_RETRY_TIMEOUT_MS
#error MQTT_SEND_RETRY_TIMEOUT_MS is deprecated. Instead use MQTT_SEND_TIMEOUT_MS.
#endif
/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif /* ifndef CORE_MQTT_CONFIG_DEFAULTS_H_ */
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